01dabed205
If zram-generator package is installed and works, then we can not remove
zram module because zram swap is being used. This case needs a clean zram
environment, change this test by using hot_add/hot_remove interface. So
even zram device is being used, we still can add zram device and remove
them in cleanup.
The two interface was introduced since kernel commit 6566d1a32bf7("zram:
add dynamic device add/remove functionality") in v4.2-rc1. If kernel
supports these two interface, we use hot_add/hot_remove to slove this
problem, if not, just check whether zram is being used or built in, then
skip it on old kernel.
Signed-off-by: Yang Xu <xuyang2018.jy@fujitsu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
45 lines
1.2 KiB
Bash
Executable File
45 lines
1.2 KiB
Bash
Executable File
#!/bin/bash
|
|
# SPDX-License-Identifier: GPL-2.0-or-later
|
|
# Copyright (c) 2015 Oracle and/or its affiliates. All Rights Reserved.
|
|
#
|
|
# Test checks that we can create swap zram device.
|
|
#
|
|
# Author: Alexey Kodanev <alexey.kodanev@oracle.com>
|
|
# Modified: Naresh Kamboju <naresh.kamboju@linaro.org>
|
|
|
|
TCID="zram02"
|
|
ERR_CODE=0
|
|
|
|
. ./zram_lib.sh
|
|
|
|
# Test will create the following number of zram devices:
|
|
dev_num=1
|
|
# This is a list of parameters for zram devices.
|
|
# Number of items must be equal to 'dev_num' parameter.
|
|
zram_max_streams="2"
|
|
|
|
# The zram sysfs node 'disksize' value can be either in bytes,
|
|
# or you can use mem suffixes. But in some old kernels, mem
|
|
# suffixes are not supported, for example, in RHEL6.6GA's kernel
|
|
# layer, it uses strict_strtoull() to parse disksize which does
|
|
# not support mem suffixes, in some newer kernels, they use
|
|
# memparse() which supports mem suffixes. So here we just use
|
|
# bytes to make sure everything works correctly.
|
|
zram_sizes="1048576" # 1M
|
|
zram_mem_limits="1M"
|
|
|
|
check_prereqs
|
|
zram_load
|
|
zram_max_streams
|
|
zram_set_disksizes
|
|
zram_set_memlimit
|
|
zram_makeswap
|
|
zram_swapoff
|
|
zram_cleanup
|
|
|
|
if [ $ERR_CODE -ne 0 ]; then
|
|
echo "$TCID : [FAIL]"
|
|
else
|
|
echo "$TCID : [PASS]"
|
|
fi
|